2 Fix crash at startup when an empty suffix is supplied to
3 --conf-dir, also trivial memory leak. Thanks to
4 Tomas Hozza for spotting this.
6 Remove floor of 4096 on advertised EDNS0 packet size when
7 DNSSEC in use, the original rationale for this has long gone.
8 Thanks to Anders Kaseorg for spotting this.
10 Use inotify for checking on updates to /etc/resolv.conf and
11 friends under Linux. This fixes race conditions when the files are
12 updated rapidly and saves CPU by noy polling.
14 Fix breakage of --domain=<domain>,<subnet>,local - only reverse
15 queries were intercepted. THis appears to have been broken
16 since 2.69. Thanks to Josh Stone for finding the bug.
18 Eliminate IPv6 privacy addresses and deprecated addresses from
19 the answers given by --interface-name. Note that reverse queries
20 (ie looking for names, given addresses) are not affected.
21 Thanks to Michael Gorbach for the suggestion.
23 Fix crash in DNSSEC code with long RRs. Thanks to Marco Davids
26 Add --ignore-address option. Ignore replies to A-record
27 queries which include the specified address. No error is
28 generated, dnsmasq simply continues to listen for another
29 reply. This is useful to defeat blocking strategies which
30 rely on quickly supplying a forged answer to a DNS
31 request for certain domains, before the correct answer can
32 arrive. Thanks to Glen Huang for the patch.
34 Revisit the part of DNSSEC validation which determines if an
35 unsigned answer is legit, or is in some part of the DNS
36 tree which should be signed. Dnsmasq now works from the
37 DNS root downward looking for the limit of signed
38 delegations, rather than working bottom up. This is
39 both more correct, and less likely to trip over broken
40 nameservers in the unsigned parts of the DNS tree
41 which don't respond well to DNSSEC queries.
43 Add --log-queries=extra option, which makes logs easier
44 to search automatically.
48 Add ra-advrouter mode, for RFC-3775 mobile IPv6 support.
50 Add support for "ipsets" in *BSD, using pf. Thanks to
51 Sven Falempim for the patch.
53 Fix race condition which could lock up dnsmasq when an
54 interface goes down and up rapidly. Thanks to Conrad
55 Kostecki for helping to chase this down.
57 Add DBus methods SetFilterWin2KOption and SetBogusPrivOption
58 Thanks to the Smoothwall project for the patch.
60 Fix failure to build against Nettle-3.0. Thanks to Steven
61 Barth for spotting this and finding the fix.
63 When assigning existing DHCP leases to intefaces by comparing
64 networks, handle the case that two or more interfaces have the
65 same network part, but different prefix lengths (favour the
66 longer prefix length.) Thanks to Lung-Pin Chang for the
69 Add a mode which detects and removes DNS forwarding loops, ie
70 a query sent to an upstream server returns as a new query to
71 dnsmasq, and would therefore be forwarded again, resulting in
72 a query which loops many times before being dropped. Upstream
73 servers which loop back are disabled and this event is logged.
74 Thanks to Smoothwall for their sponsorship of this feature.
76 Extend --conf-dir to allow filtering of files. So
77 --conf-dir=/etc/dnsmasq.d,\*.conf
78 will load all the files in /etc/dnsmasq.d which end in .conf
80 Fix bug when resulted in NXDOMAIN answers instead of NODATA in
83 Fix bug which caused dnsmasq to become unresponsive if it
84 failed to send packets due to a network interface disappearing.
85 Thanks to Niels Peen for spotting this.
87 Fix problem with --local-service option on big-endian platforms
88 Thanks to Richard Genoud for the patch.
92 Subtle change to error handling to help DNSSEC validation
93 when servers fail to provide NODATA answers for
94 non-existent DS records.
96 Tweak code which removes DNSSEC records from answers when
97 not required. Fixes broken answers when additional section
98 has real records in it. Thanks to Marco Davids for the bug
101 Fix DNSSEC validation of ANY queries. Thanks to Marco Davids
102 for spotting that too.
104 Fix total DNS failure and 100% CPU use if cachesize set to zero,
105 regression introduced in 2.69. Thanks to James Hunt and
106 the Ubuntu crowd for assistance in fixing this.
110 Fix crash, introduced in 2.69, on TCP request when dnsmasq
111 compiled with DNSSEC support, but running without DNSSEC
112 enabled. Thanks to Manish Sing for spotting that one.
114 Fix regression which broke ipset functionality. Thanks to
115 Wang Jian for the bug report.
119 Implement dynamic interface discovery on *BSD. This allows
120 the contructor: syntax to be used in dhcp-range for DHCPv6
121 on the BSD platform. Thanks to Matthias Andree for
122 valuable research on how to implement this.
124 Fix infinite loop associated with some --bogus-nxdomain
125 configs. Thanks fogobogo for the bug report.
127 Fix missing RA RDNS option with configuration like
128 --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer
129 for spotting the problem.
131 Add [fd00::] and [fe80::] as special addresses in DHCPv6
132 options, analogous to [::]. [fd00::] is replaced with the
133 actual ULA of the interface on the machine running
134 dnsmasq, [fe80::] with the link-local address.
135 Thanks to Tsachi Kimeldorfer for championing this.
137 DNSSEC validation and caching. Dnsmasq needs to be
138 compiled with this enabled, with
140 make dnsmasq COPTS=-DHAVE_DNSSEC
142 this add dependencies on the nettle crypto library and the
143 gmp maths library. It's possible to have these linked
146 make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC'
148 which bloats the dnsmasq binary, but saves the size of
149 the shared libraries which are much bigger.
151 To enable, DNSSEC, you will need a set of
152 trust-anchors. Now that the TLDs are signed, this can be
153 the keys for the root zone, and for convenience they are
154 included in trust-anchors.conf in the dnsmasq
155 distribution. You should of course check that these are
156 legitimate and up-to-date. So, adding
158 conf-file=/path/to/trust-anchors.conf
161 to your config is all thats needed to get things
162 working. The upstream nameservers have to be DNSSEC-capable
163 too, of course. Many ISP nameservers aren't, but the
164 Google public nameservers (8.8.8.8 and 8.8.4.4) are.
165 When DNSSEC is configured, dnsmasq validates any queries
166 for domains which are signed. Query results which are
167 bogus are replaced with SERVFAIL replies, and results
168 which are correctly signed have the AD bit set. In
169 addition, and just as importantly, dnsmasq supplies
170 correct DNSSEC information to clients which are doing
171 their own validation, and caches DNSKEY, DS and RRSIG
172 records, which significantly improve the performance of
173 downstream validators. Setting --log-queries will show
176 If a domain is returned from an upstream nameserver without
177 DNSSEC signature, dnsmasq by default trusts this. This
178 means that for unsigned zone (still the majority) there
179 is effectively no cost for having DNSSEC enabled. Of course
180 this allows an attacker to replace a signed record with a
181 false unsigned record. This is addressed by the
182 --dnssec-check-unsigned flag, which instructs dnsmasq
183 to prove that an unsigned record is legitimate, by finding
184 a secure proof that the zone containing the record is not
185 signed. Doing this has costs (typically one or two extra
186 upstream queries). It also has a nasty failure mode if
187 dnsmasq's upstream nameservers are not DNSSEC capable.
188 Without --dnssec-check-unsigned using such an upstream
189 server will simply result in not queries being validated;
190 with --dnssec-check-unsigned enabled and a
191 DNSSEC-ignorant upstream server, _all_ queries will fail.
193 Note that DNSSEC requires that the local time is valid and
194 accurate, if not then DNSSEC validation will fail. NTP
195 should be running. This presents a problem for routers
196 without a battery-backed clock. To set the time needs NTP
197 to do DNS lookups, but lookups will fail until NTP has run.
198 To address this, there's a flag, --dnssec-no-timecheck
199 which disables the time checks (only) in DNSSEC. When dnsmasq
200 is started and the clock is not synced, this flag should
201 be used. As soon as the clock is synced, SIGHUP dnsmasq.
202 The SIGHUP clears the cache of partially-validated data and
203 resets the no-timecheck flag, so that all DNSSEC checks
204 henceforward will be complete.
206 The development of DNSSEC in dnsmasq was started by
207 Giovanni Bajo, to whom huge thanks are owed. It has been
208 supported by Comcast, whose techfund grant has allowed for
209 an invaluable period of full-time work to get it to
212 Add --rev-server. Thanks to Dave Taht for suggesting this.
214 Add --servers-file. Allows dynamic update of upstream servers
215 full access to configuration.
217 Add --local-service. Accept DNS queries only from hosts
218 whose address is on a local subnet, ie a subnet for which
219 an interface exists on the server. This option
220 only has effect if there are no --interface --except-interface,
221 --listen-address or --auth-server options. It is intended
222 to be set as a default on installation, to allow
223 unconfigured installations to be useful but also safe from
224 being used for DNS amplification attacks.
226 Fix crashes in cache_get_cname_target() when dangling CNAMEs
227 encountered. Thanks to Andy and the rt-n56u project for
228 find this and helping to chase it down.
230 Fix wrong RCODE in authoritative DNS replies to PTR queries. The
231 correct answer was included, but the RCODE was set to NXDOMAIN.
232 Thanks to Craig McQueen for spotting this.
234 Make statistics available as DNS queries in the .bind TLD as
235 well as logging them.
239 Use random addresses for DHCPv6 temporary address
240 allocations, instead of algorithmically determined stable
243 Fix bug which meant that the DHCPv6 DUID was not available
244 in DHCP script runs during the lifetime of the dnsmasq
245 process which created the DUID de-novo. Once the DUID was
246 created and stored in the lease file and dnsmasq
247 restarted, this bug disappeared.
249 Fix bug introduced in 2.67 which could result in erroneous
250 NXDOMAIN returns to CNAME queries.
252 Fix build failures on MacOS X and openBSD.
254 Allow subnet specifications in --auth-zone to be interface
255 names as well as address literals. This makes it possible
256 to configure authoritative DNS when local address ranges
257 are dynamic and works much better than the previous
258 work-around which exempted contructed DHCP ranges from the
259 IP address filtering. As a consequence, that work-around
260 is removed. Under certain circumstances, this change wil
261 break existing configuration: if you're relying on the
262 contructed-range exception, you need to change --auth-zone
263 to specify the same interface as is used to construct your
264 DHCP ranges, probably with a trailing "/6" like this:
265 --auth-zone=example.com,eth0/6 to limit the addresses to
266 IPv6 addresses of eth0.
268 Fix problems when advertising deleted IPv6 prefixes. If
269 the prefix is deleted (rather than replaced), it doesn't
270 get advertised with zero preferred time. Thanks to Tsachi
273 Fix segfault with some locally configured CNAMEs. Thanks
274 to Andrew Childs for spotting the problem.
276 Fix memory leak on re-reading /etc/hosts and friends,
279 Check the arrival interface of incoming DNS and TFTP
280 requests via IPv6, even in --bind-interfaces mode. This
281 isn't possible for IPv4 and can generate scary warnings,
282 but as it's always possible for IPv6 (the API always
283 exists) then we should do it always.
285 Tweak the rules on prefix-lengths in --dhcp-range for
286 IPv6. The new rule is that the specified prefix length
287 must be larger than or equal to the prefix length of the
288 corresponding address on the local interface.
292 Fix crash if upstream server returns SERVFAIL when
293 --conntrack in use. Thanks to Giacomo Tazzari for finding
294 this and supplying the patch.
296 Repair regression in 2.64. That release stopped sending
297 lease-time information in the reply to DHCPINFORM
298 requests, on the correct grounds that it was a standards
299 violation. However, this broke the dnsmasq-specific
300 dhcp_lease_time utility. Now, DHCPINFORM returns
301 lease-time only if it's specifically requested
302 (maintaining standards) and the dhcp_lease_time utility
303 has been taught to ask for it (restoring functionality).
305 Fix --dhcp-match, --dhcp-vendorclass and --dhcp-userclass
306 to work with BOOTP and well as DHCP. Thanks to Peter
307 Korsgaard for spotting the problem.
309 Add --synth-domain. Thanks to Vishvananda Ishaya for
312 Fix failure to compile ipset.c if old kernel headers are
313 in use. Thanks to Eugene Rudoy for pointing this out.
315 Handle IPv4 interface-address labels in Linux. These are
316 often used to emulate the old IP-alias addresses. Before,
317 using --interface=eth0 would service all the addresses of
318 eth0, including ones configured as aliases, which appear
319 in ifconfig as eth0:0. Now, only addresses with the label
320 eth0 are active. This is not backwards compatible: if you
321 want to continue to bind the aliases too, you need to add
322 eg. --interface=eth0:0 to the config.
324 Fix "failed to set SO_BINDTODEVICE on DHCP socket: Socket
325 operation on non-socket" error on startup with
326 configurations which have exactly one --interface option
327 and do RA but _not_ DHCPv6. Thanks to Trever Adams for the
330 Generalise --interface-name to cope with IPv6 addresses
331 and multiple addresses per interface per address family.
333 Fix option parsing for --dhcp-host, which was generating a
334 spurious error when all seven possible items were
335 included. Thanks to Zhiqiang Wang for the bug report.
337 Remove restriction on prefix-length in --auth-zone. Thanks
338 to Toke Hoiland-Jorgensen for suggesting this.
340 Log when the maximum number of concurrent DNS queries is
341 reached. Thanks to Marcelo Salhab Brogliato for the patch.
343 If wildcards are used in --interface, don't assume that
344 there will only ever be one available interface for DHCP
345 just because there is one at start-up. More may appear, so
346 we can't use SO_BINDTODEVICE. Thanks to Natrio for the bug
349 Increase timeout/number of retries in TFTP to accomodate
350 AudioCodes Voice Gateways doing streaming writes to flash.
351 Thanks to Damian Kaczkowski for spotting the problem.
353 Fix crash with empty DHCP string options when adding zero
354 terminator. Thanks to Patrick McLean for the bug report.
356 Allow hostnames to start with a number, as allowed in
357 RFC-1123. Thanks to Kyle Mestery for the patch.
359 Fixes to DHCP FQDN option handling: don't terminate FQDN
360 if domain not known and allow a FQDN option with blank
361 name to request that a FQDN option is returned in the
362 reply. Thanks to Roy Marples for the patch.
364 Make --clear-on-reload apply to setting upstream servers
367 When the address which triggered the construction of an
368 advertised IPv6 prefix disappears, continue to advertise
369 the prefix for up to 2 hours, with the preferred lifetime
370 set to zero. This satisfies RFC 6204 4.3 L-13 and makes
371 things work better if a prefix disappears without being
372 deprecated first. Thanks to Uwe Schindler for persuasively
375 Fix MAC address enumeration on *BSD. Thanks to Brad Smith
378 Support RFC-4242 information-refresh-time options in the
379 reply to DHCPv6 information-request. The lease time of the
380 smallest valid dhcp-range is sent. Thanks to Uwe Schindler
383 Make --listen-address higher priority than --except-interface
384 in all circumstances. Thanks to Thomas Hood for the bugreport.
386 Provide independent control over which interfaces get TFTP
387 service. If enable-tftp is given a list of interfaces, then TFTP
388 is provided on those. Without the list, the previous behaviour
389 (provide TFTP to the same interfaces we provide DHCP to)
390 is retained. Thanks to Lonnie Abelbeck for the suggestion.
392 Add --dhcp-relay config option. Many thanks to vtsl.net
393 for sponsoring this development.
395 Fix crash with empty tag: in --dhcp-range. Thanks to
396 Kaspar Schleiser for the bug report.
398 Add "baseline" and "bloatcheck" makefile targets, for
399 revealing size changes during development. Thanks to
400 Vladislav Grishenko for the patch.
402 Cope with DHCPv6 clients which send REQUESTs without
403 address options - treat them as SOLICIT with rapid commit.
405 Support identification of clients by MAC address in
406 DHCPv6. When using a relay, the relay must support RFC
407 6939 for this to work. It always works for directly
408 connected clients. Thanks to Vladislav Grishenko
409 for prompting this feature.
411 Remove the rule for constructed DHCP ranges that the local
412 address must be either the first or last address in the
413 range. This was originally to avoid SLAAC addresses, but
414 we now explicitly autoconfig and privacy addresses instead.
416 Update Polish translation. Thanks to Jan Psota.
418 Fix problem in DHCPv6 vendorclass/userclass matching
419 code. Thanks to Tanguy Bouzeloc for the patch.
421 Update Spanish transalation. Thanks to Vicente Soriano.
423 Add --ra-param option. Thanks to Vladislav Grishenko for
426 Add --add-subnet configuration, to tell upstream DNS
427 servers where the original client is. Thanks to DNSthingy
428 for sponsoring this feature.
430 Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
431 Kevin Darbyshire-Bryant for the initial patch.
433 Allow A/AAAA records created by --interface-name to be the
434 target of --cname. Thanks to Hadmut Danisch for the
437 Avoid treating a --dhcp-host which has an IPv6 address
438 as eligable for use with DHCPv4 on the grounds that it has
439 no address, and vice-versa. Thanks to Yury Konovalov for
440 spotting the problem.
442 Do a better job caching dangling CNAMEs. Thanks to Yves
443 Dorfsman for spotting the problem.
447 Add the ability to act as an authoritative DNS
448 server. Dnsmasq can now answer queries from the wider 'net
449 with local data, as long as the correct NS records are set
450 up. Only local data is provided, to avoid creating an open
451 DNS relay. Zone transfer is supported, to allow secondary
452 servers to be configured.
454 Add "constructed DHCP ranges" for DHCPv6. This is intended
455 for IPv6 routers which get prefixes dynamically via prefix
456 delegation. With suitable configuration, stateful DHCPv6
457 and RA can happen automatically as prefixes are delegated
458 and then deprecated, without having to re-write the
459 dnsmasq configuration file or restart the daemon. Thanks to
460 Steven Barth for extensive testing and development work on
463 Fix crash on startup on Solaris 11. Regression probably
464 introduced in 2.61. Thanks to Geoff Johnstone for the
467 Add code to make behaviour for TCP DNS requests that same
468 as for UDP requests, when a request arrives for an allowed
469 address, but via a banned interface. This change is only
470 active on Linux, since the relevant API is missing (AFAIK)
471 on other platforms. Many thanks to Tomas Hozza for
472 spotting the problem, and doing invaluable discovery of
473 the obscure and undocumented API required for the solution.
475 Don't send the default DHCP option advertising dnsmasq as
476 the local DNS server if dnsmasq is configured to not act
477 as DNS server, or it's configured to a non-standard port.
479 Add DNSMASQ_CIRCUIT_ID, DNSMASQ_SUBCRIBER_ID,
480 DNSMASQ_REMOTE_ID variables to the environment of the
481 lease-change script (and the corresponding Lua). These hold
482 information inserted into the DHCP request by a DHCP relay
483 agent. Thanks to Lakefield Communications for providing a
484 bounty for this addition.
486 Fixed crash, introduced in 2.64, whilst handling DHCPv6
487 information-requests with some common configurations.
488 Thanks to Robert M. Albrecht for the bug report and
491 Add --ipset option. Thanks to Jason A. Donenfeld for the
494 Don't erroneously reject some option names in --dhcp-match
495 options. Thanks to Benedikt Hochstrasser for the bug report.
497 Allow a trailing '*' wildcard in all interface-name
498 configurations. Thanks to Christian Parpart for the patch.
500 Handle the situation where libc headers define
501 SO_REUSEPORT, but the kernel in use doesn't, to cope with
502 the introduction of this option to Linux. Thanks to Rich
503 Felker for the bug report.
505 Update Polish translation. Thanks to Jan Psota.
507 Fix crash if the configured DHCP lease limit is
508 reached. Regression occurred in 2.61. Thanks to Tsachi for
511 Update the French translation. Thanks to Gildas le Nadan.
515 Fix regression which broke forwarding of queries sent via
516 TCP which are not for A and AAAA and which were directed to
517 non-default servers. Thanks to Niax for the bug report.
519 Fix failure to build with DHCP support excluded. Thanks to
520 Gustavo Zacarias for the patch.
522 Fix nasty regression in 2.64 which completely broke cacheing.
526 Handle DHCP FQDN options with all flag bits zero and
527 --dhcp-client-update set. Thanks to Bernd Krumbroeck for
528 spotting the problem.
530 Finesse the check for /etc/hosts names which conflict with
531 DHCP names. Previously a name/address pair in /etc/hosts
532 which didn't match the name/address of a DHCP lease would
533 generate a warning. Now that only happesn if there is not
534 also a match. This allows multiple addresses for a name in
535 /etc/hosts with one of them assigned via DHCP.
537 Fix broken vendor-option processing for BOOTP. Thanks to
538 Hans-Joachim Baader for the bug report.
540 Don't report spurious netlink errors, regression in
541 2.63. Thanks to Vladislav Grishenko for the patch.
543 Flag DHCP or DHCPv6 in starup logging. Thanks to
544 Vladislav Grishenko for the patch.
546 Add SetServersEx method in DBus interface. Thanks to Dan
547 Williams for the patch.
549 Add SetDomainServers method in DBus interface. Thanks to
550 Roy Marples for the patch.
552 Fix build with later Lua libraries. Thansk to Cristian
553 Rodriguez for the patch.
555 Add --max-cache-ttl option. Thanks to Dennis Kaarsemaker
558 Fix breakage of --host-record parsing, resulting in
559 infinte loop at startup. Regression in 2.63. Thanks to
560 Haim Gelfenbeyn for spotting this.
562 Set SO_REUSEADDRESS and SO_V6ONLY options on the DHCPv6
563 socket, this allows multiple instances of dnsmasq on a
564 single machine, in the same way as for DHCPv4. Thanks to
565 Gene Czarcinski and Vladislav Grishenko for work on this.
567 Fix DHCPv6 to do access control correctly when it's
568 configured with --listen-address. Thanks to
569 Gene Czarcinski for sorting this out.
571 Add a "wildcard" dhcp-range which works for any IPv6
572 subnet, --dhcp-range=::,static Useful for Stateless
573 DHCPv6. Thanks to Vladislav Grishenko for the patch.
575 Don't include lease-time in DHCPACK replies to DHCPINFORM
576 queries, since RFC-2131 says we shouldn't. Thanks to
577 Wouter Ibens for pointing this out.
579 Makefile tweak to do dependency checking on header files.
580 Thanks to Johan Peeters for the patch.
582 Check interface for outgoing unsolicited router
583 advertisements, rather than relying on interface address
584 configuration. Thanks to Gene Czarinski for the patch.
586 Handle better attempts to transmit on interfaces which are
587 still doing DAD, and specifically do not just transmit
588 without setting source address and interface, since this
589 can cause very puzzling effects when a router
590 advertisement goes astray. Thanks again to Gene Czarinski.
592 Get RA timers right when there is more than one
593 dhcp-range on a subnet.
597 Do duplicate dhcp-host address check in --test mode.
599 Check that tftp-root directories are accessible before
600 start-up. Thanks to Daniel Veillard for the initial patch.
602 Allow more than one --tfp-root flag. The per-interface
603 stuff is pointless without that.
605 Add --bind-dynamic. A hybrid mode between the default and
606 --bind-interfaces which copes with dynamically created
609 A couple of fixes to the build system for Android. Thanks
610 to Metin Kaya for the patches.
612 Remove the interface:<interface> argument in --dhcp-range, and
613 the interface argument to --enable-tftp. These were a
614 still-born attempt to allow automatic isolated
615 configuration by libvirt, but have never (to my knowledge)
616 been used, had very strange semantics, and have been
617 superceded by other mechanisms.
619 Fixed bug logging filenames when duplicate dhcp-host
620 addresses are found. Thanks to John Hanks for the patch.
622 Fix regression in 2.61 which broke caching of CNAME
623 chains. Thanks to Atul Gupta for the bug report.
625 Allow the target of a --cname flag to be another --cname.
627 Teach DHCPv6 about the RFC 4242 information-refresh-time
628 option, and add parsing if the minutes, hours and days
629 format for options. Thanks to Francois-Xavier Le Bail for
632 Allow "w" (for week) as multiplier in lease times, as well
633 as seconds, minutes, hours and days. Álvaro Gámez Machado
634 spotted the ommission.
636 Update French translation. Thanks to Gildas Le Nadan.
638 Allow a DBus service name to be given with --enable-dbus
639 which overrides the default,
640 uk.org.thekelleys.dnsmasq. Thanks to Mathieu
641 Trudel-Lapierre for the patch.
643 Set the "prefix on-link" bit in Router
644 Advertisements. Thanks to Gui Iribarren for the patch.
648 Update German translation. Thanks to Conrad Kostecki.
650 Cope with router-solict packets wich don't have a valid
651 source address. Thanks to Vladislav Grishenko for the patch.
653 Fixed bug which caused missing periodic router
654 advertisements with some configurations. Thanks to
655 Vladislav Grishenko for the patch.
657 Fixed bug which broke DHCPv6/RA with prefix lengths
658 which are not divisible by 8. Thanks to Andre Coetzee
661 Fix non-response to router-solicitations when
662 router-advertisement configured, but DHCPv6 not
663 configured. Thanks to Marien Zwart for the patch.
665 Add --dns-rr, to allow arbitrary DNS resource records.
667 Fixed bug which broke RA scheduling when an interface had
668 two addresses in the same network. Thanks to Jim Bos for
669 his help nailing this.
672 Re-write interface discovery code on *BSD to use
673 getifaddrs. This is more portable, more straightforward,
674 and allows us to find the prefix length for IPv6
677 Add ra-names, ra-stateless and slaac keywords for DHCPv6.
678 Dnsmasq can now synthesise AAAA records for dual-stack
679 hosts which get IPv6 addresses via SLAAC. It is also now
680 possible to use SLAAC and stateless DHCPv6, and to
681 tell clients to use SLAAC addresses as well as DHCP ones.
682 Thanks to Dave Taht for help with this.
684 Add --dhcp-duid to allow DUID-EN uids to be used.
686 Explicity send DHCPv6 replies to the correct port, instead
687 of relying on clients to send requests with the correct
688 source address, since at least one client in the wild gets
689 this wrong. Thanks to Conrad Kostecki for help tracking
692 Send a preference value of 255 in DHCPv6 replies when
693 --dhcp-authoritative is in effect. This tells clients not
694 to wait around for other DHCP servers.
696 Better logging of DHCPv6 options.
698 Add --host-record. Thanks to Rob Zwissler for the
701 Invoke the DHCP script with action "tftp" when a TFTP file
702 transfer completes. The size of the file, address to which
703 it was sent and complete pathname are supplied. Note that
704 version 2.60 introduced some script incompatibilties
705 associated with DHCPv6, and this is a further change. To
706 be safe, scripts should ignore unknown actions, and if
707 not IPv6-aware, should exit if the environment
708 variable DNSMASQ_IAID is set. The use-case for this is
709 to track netboot/install. Suggestion from Shantanu
712 Update contrib/port-forward/dnsmasq-portforward to reflect
715 Set the environment variable DNSMASQ_LOG_DHCP when running
716 the script id --log-dhcp is in effect, so that script can
717 taylor their logging verbosity. Suggestion from Malte
720 Arrange that addresses specified with --listen-address
721 work even if there is no interface carrying the
722 address. This is chiefly useful for IPv4 loopback
723 addresses, where any address in 127.0.0.0/8 is a valid
724 loopback address, but normally only 127.0.0.1 appears on
725 the lo interface. Thanks to Mathieu Trudel-Lapierre for
726 the idea and initial patch.
728 Fix crash, introduced in 2.60, when a DHCPINFORM is
729 received from a network which has no valid dhcp-range.
730 Thanks to Stephane Glondu for the bug report.
732 Add a new DHCP lease time keyword, "deprecated" for
733 --dhcp-range. This is only valid for IPv6, and sets the
734 preffered lease time for both DHCP and RA to zero. The
735 effect is that clients can continue to use the address
736 for existing connections, but new connections will use
737 other addresses, if they exist. This makes hitless
738 renumbering at least possible.
740 Fix bug in address6_available() which caused DHCPv6 lease
741 aquisition to fail if more than one dhcp-range in use.
743 Provide RDNSS and DNSSL data in router advertisements,
744 using the settings provided for DHCP options
745 option6:domain-search and option6:dns-server.
747 Tweak logo/favicon.ico to add some transparency. Thanks to
748 SamLT for work on this.
750 Don't cache data from non-recursive nameservers, since it
751 may erroneously look like a valid CNAME to a non-exitant
752 name. Thanks to Ben Winslow for finding this.
754 Call SO_BINDTODEVICE on the DHCP socket(s) when doing DHCP
755 on exactly one interface and --bind-interfaces is set. This
756 makes the OpenStack use-case of one dnsmasq per virtual
757 interface work. This is only available on Linux; it's not
758 supported on other platforms. Thanks to Vishvananda Ishaya
759 and the OpenStack team for the suggestion.
761 Updated French translation. Thanks to Gildas Le Nadan.
763 Give correct from-cache answers to explict CNAME queries.
764 Thanks to Rob Zwissler for spotting this.
766 Add --tftp-lowercase option. Thanks to Oliver Rath for the
769 Ensure that the DBus DhcpLeaseUpdated events are generated
770 when a lease goes through INIT_REBOOT state, even if the
771 dhcp-script is not in use. Thanks to Antoaneta-Ecaterina
774 Fix failure of TFTP over IPv4 on OpenBSD platform. Thanks
775 to Brad Smith for spotting this.
779 Fix compilation problem in Mac OS X Lion. Thanks to Olaf
780 Flebbe for the patch.
782 Fix DHCP when using --listen-address with an IP address
783 which is not the primary address of an interface.
785 Add --dhcp-client-update option.
787 Add Lua integration. Dnsmasq can now execute a DHCP
788 lease-change script written in Lua. This needs to be
789 enabled at compile time by setting HAVE_LUASCRIPT in
790 src/config.h or running "make COPTS=-DHAVE_LUASCRIPT"
791 Thanks to Jan-Piet Mens for the idea and proof-of-concept
794 Tidied src/config.h to distinguish between
795 platform-dependent compile-time options which are selected
796 automatically, and builder-selectable compile time
797 options. Document the latter better, and describe how to
798 set them from the make command line.
800 Tidied up IPPROTO_IP/SOL_IP (and IPv6 equivalent)
801 confusion. IPPROTO_IP works everywhere now.
803 Set TOS on DHCP sockets, this improves things on busy
804 wireless networks. Thanks to Dave Taht for the patch.
806 Determine VERSION automatically based on git magic:
807 release tags or hash values.
809 Improve start-up speed when reading large hosts files
810 containing many distinct addresses.
812 Fix problem if dnsmasq is started without the stdin,
813 stdout and stderr file descriptors open. This can manifest
814 itself as 100% CPU use. Thanks to Chris Moore for finding
817 Fix shell-scripting bug in bld/pkg-wrapper. Thanks to
818 Mark Mitchell for the patch.
820 Allow the TFP server or boot server in --pxe-service, to
821 be a domain name instead of an IP address. This allows for
822 round-robin to multiple servers, in the same way as
823 --dhcp-boot. A good suggestion from Cristiano Cumer.
825 Support BUILDDIR variable in the Makefile. Allows builds
826 for multiple archs from the same source tree with eg.
827 make BUILDDIR=linux (relative to dnsmasq tree)
828 make BUILDDIR=/tmp/openbsd (absolute path)
829 If BUILDDIR is not set, compilation happens in the src
830 directory, as before. Suggestion from Mark Mitchell.
832 Support DHCPv6. Support is there for the sort of things
833 the existing v4 server does, including tags, options,
834 static addresses and relay support. Missing is prefix
835 delegation, which is probably not required in the dnsmasq
836 niche, and an easy way to accept prefix delegations from
837 an upstream DHCPv6 server, which is. Future plans include
838 support for DHCPv6 router option and MAC address option
839 (to make selecting clients by MAC address work like IPv4).
840 These will be added as the standards mature.
841 This code has been tested, but this is the first release,
842 so don't bet the farm on it just yet. Many thanks to all
843 testers who have got it this far.
845 Support IPv6 router advertisements. This is a
846 simple-minded implementation, aimed at providing the
847 vestigial RA needed to go alongside IPv6. Is picks up
848 configuration from the DHCPv6 conf, and should just need
849 enabling with --enable-ra.
851 Fix long-standing wrinkle with --localise-queries that
852 could result in wrong answers when DNS packets arrive
853 via an interface other than the expected one. Thanks to
854 Lorenzo Milesi and John Hanks for spotting this one.
856 Update French translation. Thanks to Gildas Le Nadan.
858 Update Polish translation. Thanks to Jan Psota.
862 Fix regression in 2.58 which caused failure to start up
863 with some combinations of dnsmasq config and IPv6 kernel
864 network config. Thanks to Brielle Bruns for the bug
867 Improve dnsmasq's behaviour when network interfaces are
868 still doing duplicate address detection (DAD). Previously,
869 dnsmasq would wait up to 20 seconds at start-up for the
870 DAD state to terminate. This is broken for bridge
871 interfaces on recent Linux kernels, which don't start DAD
872 until the bridge comes up, and so can take arbitrary
873 time. The new behaviour lets dnsmasq poll for an arbitrary
874 time whilst providing service on other interfaces. Thanks
875 to Stephen Hemminger for pointing out the problem.
879 Provide a definition of the SA_SIZE macro where it's
880 missing. Fixes build failure on openBSD.
882 Don't include a zero terminator at the end of messages
883 sent to /dev/log when /dev/log is a datagram socket.
884 Thanks to Didier Rabound for spotting the problem.
886 Add --dhcp-sequential-ip flag, to force allocation of IP
887 addresses in ascending order. Note that the default
888 pseudo-random mode is in general better but some
889 server-deployment applications need this.
891 Fix problem where a server-id of 0.0.0.0 is sent to a
892 client when a dhcp-relay is in use if a client renews a
893 lease after dnsmasq restart and before any clients on the
894 subnet get a new lease. Thanks to Mike Ruiz for assistance
895 in chasing this one down.
897 Don't return NXDOMAIN to an AAAA query if we have CNAME
898 which points to an A record only: NODATA is the correct
899 reply in this case. Thanks to Tom Fernandes for spotting
902 Relax the need to supply a netmask in --dhcp-range for
903 networks which use a DHCP relay. Whilst this is still
904 desireable, in the absence of a netmask dnsmasq will use
905 a default based on the class (A, B, or C) of the address.
906 This should at least remove a cause of mysterious failure
907 for people using RFC1918 addresses and relays.
909 Add support for Linux conntrack connection marking. If
910 enabled with --conntrack, the connection mark for incoming
911 DNS queries will be copied to the outgoing connections
912 used to answer those queries. This allows clever firewall
913 and accounting stuff. Only available if dnsmasq is
914 compiled with HAVE_CONNTRACK and adds a dependency on
915 libnetfilter-conntrack. Thanks to Ed Wildgoose for the
916 initial idea, testing and sponsorship of this function.
918 Provide a sane error message when someone attempts to
919 match a tag in --dhcp-host.
921 Tweak the behaviour of --domain-needed, to avoid problems
922 with recursive nameservers downstream of dnsmasq. The new
923 behaviour only stops A and AAAA queries, and returns
924 NODATA rather than NXDOMAIN replies.
926 Efficiency fix for very large DHCP configurations, thanks
927 to James Gartrell and Mike Ruiz for help with this.
929 Allow the TFTP-server address in --dhcp-boot to be a
930 domain-name which is looked up in /etc/hosts. This can
931 give multiple IP addresses which are used round-robin,
932 thus doing TFTP server load-balancing. Thanks to Sushil
933 Agrawal for the patch.
935 When two tagged dhcp-options for a particular option
936 number are both valid, use the one which is valid without
937 a tag from the dhcp-range. Allows overriding of the value
938 of a DHCP option for a particular host as well as
939 per-network values. So
940 --dhcp-range=set:interface1,......
941 --dhcp-host=set:myhost,.....
942 --dhcp-option=tag:interface1,option:nis-domain,"domain1"
943 --dhcp-option=tag:myhost,option:nis-domain,"domain2"
944 will set the NIS-domain to domain1 for hosts in the range, but
945 override that to domain2 for a particular host.
947 Fix bug which resulted in truncated files and timeouts for
948 some TFTP transfers. The bug only occurs with netascii
949 transfers and needs an unfortunate relationship between
950 file size, blocksize and the number of newlines in the
951 last block before it manifests itself. Many thanks to
952 Alkis Georgopoulos for spotting the problem and providing
953 a comprehensive test-case.
955 Fix regression in TFTP server on *BSD platforms introduced
956 in version 2.56, due to confusion with sockaddr
957 length. Many thanks to Loic Pefferkorn for finding this.
959 Support scope-ids in IPv6 addresses of nameservers from
960 /etc/resolv.conf and in --server options. Eg
961 nameserver fe80::202:a412:4512:7bbf%eth0 or
962 server=fe80::202:a412:4512:7bbf%eth0. Thanks to
963 Michael Stapelberg for the suggestion.
965 Update Polish translation, thanks to Jan Psota.
967 Update French translation. Thanks to Gildas Le Nadan.
971 Add patches to allow build under Android.
973 Provide our own header for the DNS protocol, rather than
974 relying on arpa/nameser.h. This has proved more or less
975 defective over the years and the final straw is that it's
976 effectively empty on Android.
978 Fix regression in 2.56 which caused hex constants in
979 configuration to be rejected if they contain the '*'
982 Correct wrong casts of arguments to ctype.h functions,
983 isdigit(), isxdigit() etc. Thanks to Matthias Andree for
986 Allow build with IDN support independently from i18n.
987 IDN support continues to be included automatically
988 when i18n is included.
989 'make COPTS=-DHAVE_IDN' is the magic incantation.
991 Modify check on extraneous command line junk (added in
992 2.56) so that it doesn't complain about extra _empty_
993 arguments. Otherwise this breaks libvirt.
997 Add a patch to allow dnsmasq to get interface names right in a
998 Solaris zone. Thanks to Dj Padzensky for this.
1000 Improve data-type parsing heuristics so that
1001 --dhcp-option=option:domain-search,.
1002 treats the value as a string and not an IP address.
1003 Thanks to Clemens Fischer for spotting that.
1005 Add IPv6 support to the TFTP server. Many thanks to Jan
1006 'RedBully' Seiffert for the patches.
1008 Log DNS queries at level LOG_INFO, rather then
1009 LOG_DEBUG. This makes things consistent with DHCP
1010 logging. Thanks to Adam Pribyl for spotting the problem.
1012 Ensure that dnsmasq terminates cleanly when using
1013 --syslog-async even if it cannot make a connection to the
1016 Add --add-mac option. This is to support currently
1017 experimental DNS filtering facilities. Thanks to Benjamin
1018 Petrin for the orignal patch.
1020 Fix bug which meant that tags were ignored in dhcp-range
1021 configuration specifying PXE-proxy service. Thanks to
1022 Cristiano Cumer for spotting this.
1024 Raise an error if there is extra junk, not part of an
1025 option, on the command line.
1027 Flag a couple of log messages in cache.c as coming from
1028 the DHCP subsystem. Thanks to Olaf Westrik for the patch.
1030 Omit timestamps from logs when a) logging to stderr and
1031 b) --keep-in-forground is set. The logging facility on the
1032 other end of stderr can be assumned to supply them. Thanks
1033 to John Hallam for the patch.
1035 Don't complain about strings longer than 255 characters in
1036 --txt-record, just split the long strings into 255
1037 character chunks instead.
1039 Fix crash on double-free. This bug can only happen when
1040 dhcp-script is in use and then only in rare circumstances
1041 triggered by high DHCP transaction rate and a slow
1042 script. Thanks to Ferenc Wagner for finding the problem.
1044 Only log that a file has been sent by TFTP after the
1045 transfer has completed succesfully.
1047 A good suggestion from Ferenc Wagner: extend
1048 the --domain option to allow this sort of thing:
1049 --domain=thekelleys.org.uk,192.168.0.0/24,local
1050 which automatically creates
1051 --local=/thekelleys.org.uk/
1052 --local=/0.168.192.in-addr.arpa/
1054 Tighten up syntax checking of hex contants in the config
1055 file. Thanks to Fred Damen for spotting this.
1057 Add dnsmasq logo/icon, contributed by Justin Swift. Many
1060 Never cache DNS replies which have the 'cd' bit set, or
1061 which result from queries forwarded with the 'cd' bit
1062 set. The 'cd' bit instructs a DNSSEC validating server
1063 upstream to ignore signature failures and return replies
1064 anyway. Without this change it's possible to pollute the
1065 dnsmasq cache with bad data by making a query with the
1066 'cd' bit set and subsequent queries would return this data
1067 without its being marked as suspect. Thanks to Anders
1068 Kaseorg for pointing out this problem.
1070 Add --proxy-dnssec flag, for compliance with RFC
1071 4035. Dnsmasq will now clear the 'ad' bit in answers returned
1072 from upstream validating nameservers unless this option is
1075 Allow a filename of "-" for --conf-file to read
1076 stdin. Suggestion from Timothy Redaelli.
1078 Rotate the order of SRV records in replies, to provide
1079 round-robin load balancing when all the priorities are
1080 equal. Thanks to Peter McKinney for the suggestion.
1083 contrib/MacOSX-launchd/uk.org.thekelleys.dnsmasq.plist
1084 so that it doesn't log all queries to a file by
1085 default. Thanks again to Peter McKinney.
1087 By default, setting an IPv4 address for a domain but not
1088 an IPv6 address causes dnsmasq to return
1089 an NODATA reply for IPv6 (or vice-versa). So
1090 --address=/google.com/1.2.3.4 stops IPv6 queries for
1091 *google.com from being forwarded. Make it possible to
1092 override this behaviour by defining the sematics if the
1093 same domain appears in both --server and --address.
1094 In that case, the --address has priority for the address
1095 family in which is appears, but the --server has priority
1096 of the address family which doesn't appear in --adddress
1098 --address=/google.com/1.2.3.4
1099 --server=/google.com/#
1100 will return 1.2.3.4 for IPv4 queries for *.google.com but
1101 forward IPv6 queries to the normal upstream nameserver.
1102 Similarly when setting an IPv6 address
1103 only this will allow forwarding of IPv4 queries. Thanks to
1104 William for pointing out the need for this.
1106 Allow more than one --dhcp-optsfile and --dhcp-hostsfile
1107 and make them understand directories as arguments in the
1108 same way as --addn-hosts. Suggestion from John Hanks.
1110 Ignore rebinding requests for leases we don't know
1111 about. Rebind is broadcast, so we might get to overhear a
1112 request meant for another DHCP server. NAKing this is
1113 wrong. Thanks to Brad D'Hondt for assistance with this.
1115 Fix cosmetic bug which produced strange output when
1116 dumping cache statistics with some configurations. Thanks
1117 to Fedor Kozhevnikov for spotting this.
1121 Fix crash when /etc/ethers is in use. Thanks to
1122 Gianluigi Tiesi for finding this.
1124 Fix crash in netlink_multicast(). Thanks to Arno Wald for
1127 Allow the empty domain "." in dhcp domain-search (119)
1132 There is no version 2.54 to avoid confusion with 2.53,
1133 which incorrectly identifies itself as 2.54.
1137 Fix failure to compile on Debian/kFreeBSD. Thanks to
1138 Axel Beckert and Petr Salinger.
1140 Fix code to avoid scary strict-aliasing warnings
1141 generated by gcc 4.4.
1143 Added FAQ entry warning about DHCP failures with Vista
1144 when firewalls block 255.255.255.255.
1146 Fixed bug which caused bad things to happen if a
1147 resolv.conf file which exists is subsequently removed.
1148 Thanks to Nikolai Saoukh for the patch.
1150 Rationalised the DHCP tag system. Every configuration item
1151 which can set a tag does so by adding "set:<tag>" and
1152 every configuration item which is conditional on a tag is
1153 made so by "tag:<tag>". The NOT operator changes to '!',
1154 which is a bit more intuitive too. Dhcp-host directives
1155 can set more than one tag now. The old '#' NOT,
1156 "net:" prefix and no-prefixes are still honoured, so
1157 no existing config file needs to be changed, but
1158 the documentation and new-style config files should be
1159 much less confusing.
1161 Added --tag-if to allow boolean operations on tags.
1162 This allows complicated logic to be clearer and more
1163 general. A great suggestion from Richard Voigt.
1165 Add broadcast/unicast information to DHCP logging.
1167 Allow --dhcp-broadcast to be unconditional.
1169 Fixed incorrect behaviour with NOT <tag> conditionals in
1170 dhcp-options. Thanks to Max Turkewitz for assistance
1173 If we send vendor-class encapsulated options based on the
1174 vendor-class supplied by the client, and no explicit
1175 vendor-class option is given, echo back the vendor-class
1178 Fix bug which stopped dnsmasq from matching both a
1179 circuitid and a remoteid. Thanks to Ignacio Bravo for
1182 Add --dhcp-proxy, which makes it possible to configure
1183 dnsmasq to use a DHCP relay agent as a full proxy, with
1184 all DHCP messages passing through the proxy. This is
1185 useful if the relay adds extra information to the packets
1186 it forwards, but cannot be configured with the RFC 5107
1187 server-override option.
1189 Added interface:<iface name> part to dhcp-range. The
1190 semantics of this are very odd at first sight, but it
1191 allows a single line of the form
1192 dhcp-range=interface:virt0,192.168.0.4,192.168.0.200
1193 to be added to dnsmasq configuration which then supplies
1194 DHCP and DNS services to that interface, without affecting
1195 what services are supplied to other interfaces and
1196 irrespective of the existance or lack of
1197 interface=<interface>
1198 lines elsewhere in the dnsmasq configuration. The idea is
1199 that such a line can be added automatically by libvirt
1200 or equivalent systems, without disturbing any manual
1203 Similarly to the above, allow --enable-tftp=<interface>
1205 Allow a TFTP root to be set separately for requests via
1206 different interfaces, --tftp-root=<path>,<interface>
1208 Correctly handle and log clashes between CNAMES and
1209 DNS names being given to DHCP leases. This fixes a bug
1210 which caused nonsense IP addresses to be logged. Thanks to
1211 Sergei Zhirikov for finding and analysing the problem.
1213 Tweak flush_log so as to avoid leaving the log
1214 file in non-blocking mode. O_NONBLOCK is a property of the
1215 file, not the process/descriptor.
1217 Fix contrib/Solaris10/create_package
1218 (/usr/man -> /usr/share/man) Thanks to Vita Batrla.
1220 Fix a problem where, if a client got a lease, then went
1221 to another subnet and got another lease, then moved back,
1222 it couldn't resume the old lease, but would instead get
1223 a new address. Thanks to Leonardo Rodrigues for spotting
1224 this and testing the fix.
1226 Fix weird bug which sometimes omitted certain characters
1227 from the start of quoted strings in dhcp-options. Thanks
1228 to Dayton Turner for spotting the problem.
1230 Add facility to redirect some domains to the standard
1231 upstream servers: this allows something like
1232 --server=/google.com/1.2.3.4 --server=/www.google.com/#
1233 which will send queries for *.google.com to 1.2.3.4,
1234 except *www.google.com which will be forwarded as usual.
1235 Thanks to AJ Weber for prompting this addition.
1237 Improve the hash-algorithm used to generate IP addresses
1238 from MAC addresses during initial DHCP address
1239 allocation. This improves performance when large numbers
1240 of hosts with similar MAC addresses all try and get an IP
1241 address at the same time. Thanks to Paul Smith for his
1244 Tweak DHCP code so that --bridge-interface can be used to
1245 select which IP alias of an interface should be used for
1246 DHCP purposes on Linux. If eth0 has an alias eth0:dhcp
1247 then adding --bridge-interface=eth0:dhcp,eth0 will use
1248 the address of eth0:dhcp to determine the correct subnet
1249 for DHCP address allocation. Thanks to Pawel Golaszewski
1250 for prompting this and Eric Cooper for further testing.
1252 Add --dhcp-generate-names. Suggestion by Ferenc Wagner.
1254 Tweak DNS server selection algorithm when there is more
1255 than one server available for a domain, eg.
1256 --server=/mydomain/1.1.1.1
1257 --server=/mydomain/2.2.2.2
1258 Thanks to Alberto Cuesta-Canada for spotting a weakness
1261 Add --max-ttl. Thanks to Fredrik Ringertz for the patch.
1263 Allow --log-facility=- to force all logging to
1264 stderr. Suggestion from Clemens Fischer.
1266 Fix regression which caused configuration like
1267 --address=/.domain.com/1.2.3.4 to be rejected. The dot to the
1268 left of the domain has been implied and not required for a
1269 long time, but it should be accepted for backward
1270 compatibility. Thanks to Andrew Burcin for spotting this.
1272 Add --rebind-domain-ok and --rebind-localhost-ok.
1273 Suggestion from Clemens Fischer.
1275 Log replies to queries of type TXT, when --log-queries
1278 Fix compiler warnings when compiled with -DNO_DHCP. Thanks
1279 to Shantanu Gadgil for the patch.
1281 Updated French translation. Thanks to Gildas Le Nadan.
1283 Updated Polish translation. Thanks to Jan Psota.
1285 Updated German translation. Thanks to Matthias Andree.
1287 Added contrib/static-arp, thanks to Darren Hoo.
1289 Fix corruption of the domain when a name from /etc/hosts
1290 overrides one supplied by a DHCP client. Thanks to Fedor
1291 Kozhevnikov for spotting the problem.
1293 Updated Spanish translation. Thanks to Chris Chatham.
1297 Work around a Linux kernel bug which insists that the
1298 length of the option passed to setsockopt must be at least
1299 sizeof(int) bytes, even if we're calling SO_BINDTODEVICE
1300 and the device name is "lo". Note that this is fixed
1301 in kernel 2.6.31, but the workaround is harmless and
1302 allows earlier kernels to be used. Also fix dnsmasq
1303 bug which reported the wrong address when this failed.
1304 Thanks to Fedor for finding this.
1306 The API for IPv6 PKTINFO changed around Linux kernel
1307 2.6.14. Workaround the case where dnsmasq is compiled
1308 against newer headers, but then run on an old kernel:
1309 necessary for some *WRT distros.
1311 Re-read the set of network interfaces when re-loading
1312 /etc/resolv.conf if --bind-interfaces is not set. This
1313 handles the case that loopback interfaces do not exist
1314 when dnsmasq is first started.
1316 Tweak the PXE code to support port 4011. This should
1317 reduce broadcasts and make things more reliable when other
1318 servers are around. It also improves inter-operability
1319 with certain clients.
1321 Make a pxe-service configuration with no filename or boot
1322 service type legal: this does a local boot. eg.
1323 pxe-service=x86PC, "Local boot"
1325 Be more conservative in detecting "A for A"
1326 queries. Dnsmasq checks if the name in a type=A query looks
1327 like a dotted-quad IP address and answers the query itself
1328 if so, rather than forwarding it. Previously dnsmasq
1329 relied in the library function inet_addr() to convert
1330 addresses, and that will accept some things which are
1331 confusing in this context, like 1.2.3 or even just
1332 1234. Now we only do A for A processing for four decimal
1333 numbers delimited by dots.
1335 A couple of tweaks to fix compilation on Solaris. Thanks
1336 to Joel Macklow for help with this.
1338 Another Solaris compilation tweak, needed for Solaris
1339 2009.06. Thanks to Lee Essen for that.
1341 Added extract packaging stuff from Lee Essen to
1344 Increased the default limit on number of leases to 1000
1345 (from 150). This is mainly a defence against DoS attacks,
1346 and for the average "one for two class C networks"
1347 installation, IP address exhaustion does that just as
1348 well. Making the limit greater than the number of IP
1349 addresses available in such an installation removes a
1350 surprise which otherwise can catch people out.
1352 Removed extraneous trailing space in the value of the
1353 DNSMASQ_TIME_REMAINING DNSMASQ_LEASE_LENGTH and
1354 DNSMASQ_LEASE_EXPIRES environment variables. Thanks to
1355 Gildas Le Nadan for spotting this.
1357 Provide the network-id tags for a DHCP transaction to
1358 the lease-change script in the environment variable
1359 DNSMASQ_TAGS. A good suggestion from Gildas Le Nadan.
1361 Add support for RFC3925 "Vendor-Identifying Vendor
1362 Options". The syntax looks like this:
1363 --dhcp-option=vi-encap:<enterprise number>, .........
1365 Add support to --dhcp-match to allow matching against
1366 RFC3925 "Vendor-Identifying Vendor Classes". The syntax
1368 --dhcp-match=tag,vi-encap<enterprise number>, <value>
1370 Add some application specific code to assist in
1371 implementing the Broadband forum TR069 CPE-WAN
1372 specification. The details are in contrib/CPE-WAN/README
1374 Increase the default DNS packet size limit to 4096, as
1375 recommended by RFC5625 section 4.4.3. This can be
1376 reconfigured using --edns-packet-max if needed. Thanks to
1377 Francis Dupont for pointing this out.
1379 Rewrite query-ids even for TSIG signed packets, since
1380 this is allowed by RFC5625 section 4.5.
1382 Use getopt_long by default on OS X. It has been supported
1383 since version 10.3.0. Thanks to Arek Dreyer for spotting
1386 Added up-to-date startup configuration for MacOSX/launchd
1387 in contrib/MacOSX-launchd. Thanks to Arek Dreyer for
1390 Fix link error when including Dbus but excluding DHCP.
1391 Thanks to Oschtan for the bug report.
1393 Updated French translation. Thanks to Gildas Le Nadan.
1395 Updated Polish translation. Thanks to Jan Psota.
1397 Updated Spanish translation. Thanks to Chris Chatham.
1399 Fixed confusion about domains, when looking up DHCP hosts
1400 in /etc/hosts. This could cause spurious "Ignoring
1401 domain..." messages. Thanks to Fedor Kozhevnikov for
1402 finding and analysing the problem.
1406 Add support for internationalised DNS. Non-ASCII characters
1407 in domain names found in /etc/hosts, /etc/ethers and
1408 /etc/dnsmasq.conf will be correctly handled by translation to
1409 punycode, as specified in RFC3490. This function is only
1410 available if dnsmasq is compiled with internationalisation
1411 support, and adds a dependency on GNU libidn. Without i18n
1412 support, dnsmasq continues to be compilable with just
1413 standard tools. Thanks to Yves Dorfsman for the
1416 Add two more environment variables for lease-change scripts:
1417 First, DNSMASQ_SUPPLIED_HOSTNAME; this is set to the hostname
1418 supplied by a client, even if the actual hostname used is
1419 over-ridden by dhcp-host or dhcp-ignore-names directives.
1420 Also DNSMASQ_RELAY_ADDRESS which gives the address of
1421 a DHCP relay, if used.
1422 Suggestions from Michael Rack.
1424 Fix regression which broke echo of relay-agent
1425 options. Thanks to Michael Rack for spotting this.
1427 Don't treat option 67 as being interchangeable with
1428 dhcp-boot parameters if it's specified as
1431 Make the code to call scripts on lease-change compile-time
1432 optional. It can be switched off by editing src/config.h
1433 or building with "make COPTS=-DNO_SCRIPT".
1435 Make the TFTP server cope with filenames from Windows/DOS
1436 which use '\' as pathname separator. Thanks to Ralf for
1439 Updated Polish translation. Thanks to Jan Psota.
1441 Warn if an IP address is duplicated in /etc/ethers. Thanks
1442 to Felix Schwarz for pointing this out.
1444 Teach --conf-dir to take an option list of file suffices
1445 which will be ignored when scanning the directory. Useful
1446 for backup files etc. Thanks to Helmut Hullen for the
1449 Add new DHCP option named tftpserver-address, which
1450 corresponds to the third argument of dhcp-boot. This
1451 allows the complete functionality of dhcp-boot to be
1452 replicated with dhcp-option. Useful when using
1455 Test which upstream nameserver to use every 10 seconds
1456 or 50 queries and not just when a query times out and
1457 is retried. This should improve performance when there
1458 is a slow nameserver in the list. Thanks to Joe for the
1461 Don't do any PXE processing, even for clients with the
1462 correct vendorclass, unless at least one pxe-prompt or
1463 pxe-service option is given. This stops dnsmasq
1464 interfering with proxy PXE subsystems when it is just
1465 the DHCP server. Thanks to Spencer Clark for spotting this.
1467 Limit the blocksize used for TFTP transfers to a value
1468 which avoids packet fragmentation, based on the MTU of the
1469 local interface. Many netboot ROMs can't cope with
1472 Honour dhcp-ignore configuration for PXE and proxy-PXE
1473 requests. Thanks to Niels Basjes for the bug report.
1475 Updated French translation. Thanks to Gildas Le Nadan.
1479 Fix security problem which allowed any host permitted to
1480 do TFTP to possibly compromise dnsmasq by remote buffer
1481 overflow when TFTP enabled. Thanks to Core Security
1482 Technologies and Iván Arce, Pablo Hernán Jorge, Alejandro
1483 Pablo Rodriguez, Martín Coco, Alberto Soliño Testa and
1484 Pablo Annetta. This problem has Bugtraq id: 36121
1487 Fix a problem which allowed a malicious TFTP client to
1488 crash dnsmasq. Thanks to Steve Grubb at Red Hat for
1489 spotting this. This problem has Bugtraq id: 36120 and
1494 Fix regression in 2.48 which disables the lease-change
1495 script. Thanks to Jose Luis Duran for spotting this.
1497 Log TFTP "file not found" errors. These were not logged,
1498 since a normal PXELinux boot generates many of them, but
1499 the lack of the messages seems to be more confusing than
1500 routinely seeing them when there is no real error.
1502 Update Spanish translation. Thanks to Chris Chatham.
1506 Archived the extensive, backwards, changelog to
1507 CHANGELOG.archive. The current changelog now runs from
1508 version 2.43 and runs conventionally.
1510 Fixed bug which broke binding of servers to physical
1511 interfaces when interface names were longer than four
1512 characters. Thanks to MURASE Katsunori for the patch.
1514 Fixed netlink code to check that messages come from the
1515 correct source, and not another userspace process. Thanks
1516 to Steve Grubb for the patch.
1518 Maintainability drive: removed bug and missing feature
1519 workarounds for some old platforms. Solaris 9, OpenBSD
1520 older than 4.1, Glibc older than 2.2, Linux 2.2.x and
1521 DBus older than 1.1.x are no longer supported.
1523 Don't read included configuration files more than once:
1524 allows complex configuration structures without problems.
1526 Mark log messages from the various subsystems in dnsmasq:
1527 messages from the DHCP subsystem now have the ident string
1528 "dnsmasq-dhcp" and messages from TFTP have ident
1529 "dnsmasq-tftp". Thanks to Olaf Westrik for the patch.
1531 Fix possible infinite DHCP protocol loop when an IP
1532 address nailed to a hostname (not a MAC address) and a
1533 host sometimes provides the name, sometimes not.
1535 Allow --addn-hosts to take a directory: all the files
1536 in the directory are read. Thanks to Phil Cornelius for
1539 Support --bridge-interface on all platforms, not just BSD.
1541 Added support for advanced PXE functions. It's now
1542 possible to define a prompt and menu options which will
1543 be displayed when a client PXE boots. It's also possible to
1544 hand-off booting to other boot servers. Proxy-DHCP, where
1545 dnsmasq just supplies the PXE information and another DHCP
1546 server does address allocation, is also allowed. See the
1547 --pxe-prompt and --pxe-service keywords. Thanks to
1548 Alkis Georgopoulos for the suggestion and Guilherme Moro
1549 and Michael Brown for assistance.
1551 Improvements to DHCP logging. Thanks to Tom Metro for
1554 Add ability to build dnsmasq without DHCP support. To do
1555 this, edit src/config.h or build with
1556 "make COPTS=-DNO_DHCP". Thanks to Mahavir Jain for the patch.
1558 Added --test command-line switch - syntax check
1559 configuration files only.
1561 Updated French translation. Thanks to Gildas Le Nadan.
1565 Updated French translation. Thanks to Gildas Le Nadan.
1567 Fixed interface enumeration code to work on NetBSD
1568 5.0. Thanks to Roy Marples for the patch.
1570 Updated config.h to use the same location for the lease
1571 file on NetBSD as the other *BSD variants. Also allow
1572 LEASEFILE and CONFFILE symbols to be overriden in CFLAGS.
1574 Handle duplicate address detection on IPv6 more
1575 intelligently. In IPv6, an interface can have an address
1576 which is not usable, because it is still undergoing DAD
1577 (such addresses are marked "tentative"). Attempting to
1578 bind to an address in this state returns an error,
1579 EADDRNOTAVAIL. Previously, on getting such an error,
1580 dnsmasq would silently abandon the address, and never
1581 listen on it. Now, it retries once per second for 20
1582 seconds before generating a fatal error. 20 seconds should
1583 be long enough for any DAD process to complete, but can be
1584 adjusted in src/config.h if necessary. Thanks to Martin
1585 Krafft for the bug report.
1587 Add DBus introspection. Patch from Jeremy Laine.
1589 Update Dbus configuration file. Patch from Colin Walters.
1591 http://bugs.freedesktop.org/show_bug.cgi?id=18961
1593 Support arbitrarily encapsulated DHCP options, suggestion
1594 and initial patch from Samium Gromoff. This is useful for
1595 (eg) gPXE, which expect all its private options to be
1596 encapsulated inside a single option 175. So, eg,
1598 dhcp-option = encap:175, 190, "iscsi-client0"
1599 dhcp-option = encap:175, 191, "iscsi-client0-secret"
1601 will provide iSCSI parameters to gPXE.
1603 Enhance --dhcp-match to allow testing of the contents of a
1604 client-sent option, as well as its presence. This
1605 application in mind for this is RFC 4578
1606 client-architecture specifiers, but it's generally useful.
1607 Joey Korkames suggested the enhancement.
1609 Move from using the IP_XMIT_IF ioctl to IP_BOUND_IF on
1610 OpenSolaris. Thanks to Bastian Machek for the heads-up.
1612 No longer complain about blank lines in
1613 /etc/ethers. Thanks to Jon Nelson for the patch.
1615 Fix binding of servers to physical devices, eg
1616 --server=/domain/1.2.3.4@eth0 which was broken from 2.43
1617 onwards unless --query-port=0 set. Thanks to Peter Naulls
1620 Reply to DHCPINFORM requests even when the supplied ciaddr
1621 doesn't fall in any dhcp-range. In this case it's not
1622 possible to supply a complete configuration, but
1623 individually-configured options (eg PAC) may be useful.
1625 Allow the source address of an alias to be a range:
1626 --alias=192.168.0.0,10.0.0.0,255.255.255.0 maps the whole
1627 subnet 192.168.0.0->192.168.0.255 to 10.0.0.0->10.0.0.255,
1629 --alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
1630 maps only the 192.168.0.10->192.168.0.40 region. Thanks to
1631 Ib Uhrskov for the suggestion.
1633 Don't dynamically allocate DHCP addresses which may break
1634 Windows. Addresses which end in .255 or .0 are broken in
1635 Windows even when using supernetting.
1636 --dhcp-range=192.168.0.1,192.168.1.254,255,255,254.0 means
1637 192.168.0.255 is a valid IP address, but not for Windows.
1638 See Microsoft KB281579. We therefore no longer allocate
1639 these addresses to avoid hard-to-diagnose problems.
1641 Update Polish translation. Thanks to Jan Psota.
1643 Delete the PID-file when dnsmasq shuts down. Note that by
1644 this time, dnsmasq is normally not running as root, so
1645 this will fail if the PID-file is stored in a root-owned
1646 directory; such failure is silently ignored. To take
1647 advantage of this feature, the PID-file must be stored in a
1648 directory owned and write-able by the user running
1653 Allow --bootp-dynamic to take a netid tag, so that it may
1654 be selectively enabled. Thanks to Olaf Westrik for the
1657 Remove ISC-leasefile reading code. This has been
1658 deprecated for a long time, and last time I removed it, it
1659 ended up going back by request of one user. This time,
1660 it's gone for good; otherwise it would need to be
1661 re-worked to support multiple domains (see below).
1663 Support DHCP clients in multiple DNS domains. This is a
1664 long-standing request. Clients are assigned to a domain
1665 based in their IP address.
1667 Add --dhcp-fqdn flag, which changes behaviour if DNS names
1668 assigned to DHCP clients. When this is set, there must be
1669 a domain associated with each client, and only
1670 fully-qualified domain names are added to the DNS. The
1671 advantage is that the only the FQDN needs to be unique,
1672 so that two or more DHCP clients can share a hostname, as
1673 long as they are in different domains.
1675 Set environment variable DNSMASQ_DOMAIN when invoking
1676 lease-change script. This may be useful information to
1677 have now that it's variable.
1679 Tighten up data-checking code for DNS packet
1680 handling. Thanks to Steve Dodd who found certain illegal
1681 packets which could crash dnsmasq. No memory overwrite was
1682 possible, so this is not a security issue beyond the DoS
1685 Update example config dhcp option 47, the previous
1686 suggestion generated an illegal, zero-length,
1687 option. Thanks to Matthias Andree for finding this.
1689 Rewrite hosts-file reading code to remove the limit of
1690 1024 characters per line. John C Meuser found this.
1692 Create a net-id tag with the name of the interface on
1693 which the DHCP request was received.
1695 Fixed minor memory leak in DBus code, thanks to Jeremy
1696 Laine for the patch.
1698 Emit DBus signals as the DHCP lease database
1699 changes. Thanks to Jeremy Laine for the patch.
1701 Allow for more that one MAC address in a dhcp-host
1702 line. This configuration tells dnsmasq that it's OK to
1703 abandon a DHCP lease of the fixed address to one MAC
1704 address, if another MAC address in the dhcp-host statement
1705 asks for an address. This is useful to give a fixed
1706 address to a host which has two network interfaces
1707 (say, a laptop with wired and wireless interfaces.)
1708 It's very important to ensure that only one interface
1709 at a time is up, since dnsmasq abandons the first lease
1710 and re-uses the address before the leased time has
1711 elapsed. John Gray suggested this.
1713 Tweak the response to a DHCP request packet with a wrong
1714 server-id when --dhcp-authoritative is set; dnsmasq now
1715 returns a DHCPNAK, rather than silently ignoring the
1716 packet. Thanks to Chris Marget for spotting this
1719 Add --cname option. This provides a limited alias
1720 function, usable for DHCP names. Thanks to AJ Weber for
1721 suggestions on this.
1723 Updated contrib/webmin with latest version from Neil
1726 Updated Polish translation. Thanks to Jan Psota.
1728 Correct the text names for DHCP options 64 and 65 to be
1729 "nis+-domain" and "nis+-servers".
1731 Updated Spanish translation. Thanks to Chris Chatham.
1733 Force re-reading of /etc/resolv.conf when an "interface
1738 Fix total DNS failure in release 2.44 unless --min-port
1739 specified. Thanks to Steven Barth and Grant Coady for
1740 bugreport. Also reject out-of-range port spec, which could
1741 break things too: suggestion from Gilles Espinasse.
1745 Fix crash when unknown client attempts to renew a DHCP
1746 lease, problem introduced in version 2.43. Thanks to
1747 Carlos Carvalho for help chasing this down.
1749 Fix potential crash when a host which doesn't have a lease
1750 does DHCPINFORM. Again introduced in 2.43. This bug has
1751 never been reported in the wild.
1753 Fix crash in netlink code introduced in 2.43. Thanks to
1754 Jean Wolter for finding this.
1756 Change implementation of min_port to work even if min-port
1759 Patch to enable compilation of latest Mac OS X. Thanks to
1762 Update Spanish translation. Thanks to Christopher Chatham.
1766 Updated Polish translation. Thanks to Jan Psota.
1768 Flag errors when configuration options are repeated
1771 Further tweaks for GNU/kFreeBSD
1773 Add --no-wrap to msgmerge call - provides nicer .po file
1776 Honour lease-time spec in dhcp-host lines even for
1777 BOOTP. The user is assumed to known what they are doing in
1778 this case. (Hosts without the time spec still get infinite
1779 leases for BOOTP, over-riding the default in the
1780 dhcp-range.) Thanks to Peter Katzmann for uncovering this.
1782 Fix problem matching relay-agent ids. Thanks to Michael
1783 Rack for the bug report.
1785 Add --naptr-record option. Suggestion from Johan
1788 Implement RFC 5107 server-id-override DHCP relay agent
1791 Apply patches from Stefan Kruger for compilation on
1792 Solaris 10 under Sun studio.
1794 Yet more tweaking of Linux capability code, to suppress
1795 pointless wingeing from kernel 2.6.25 and above.
1797 Improve error checking during startup. Previously, some
1798 errors which occurred during startup would be worked
1799 around, with dnsmasq still starting up. Some were logged,
1800 some silent. Now, they all cause a fatal error and dnsmasq
1801 terminates with a non-zero exit code. The errors are those
1802 associated with changing uid and gid, setting process
1803 capabilities and writing the pidfile. Thanks to Uwe
1804 Gansert and the Suse security team for pointing out
1805 this improvement, and Bill Reimers for good implementation
1808 Provide NO_LARGEFILE compile option to switch off largefile
1809 support when compiling against versions of uclibc which
1810 don't support it. Thanks to Stephane Billiart for the patch.
1812 Implement random source ports for interactions with
1813 upstream nameservers. New spoofing attacks have been found
1814 against nameservers which do not do this, though it is not
1815 clear if dnsmasq is vulnerable, since to doesn't implement
1816 recursion. By default dnsmasq will now use a different
1817 source port (and socket) for each query it sends
1818 upstream. This behaviour can suppressed using the
1819 --query-port option, and the old default behaviour
1820 restored using --query-port=0. Explicit source-port
1821 specifications in --server configs are still honoured.
1823 Replace the random number generator, for better
1824 security. On most BSD systems, dnsmasq uses the
1825 arc4random() RNG, which is secure, but on other platforms,
1826 it relied on the C-library RNG, which may be
1827 guessable and therefore allow spoofing. This release
1828 replaces the libc RNG with the SURF RNG, from Daniel
1829 J. Berstein's DJBDNS package.
1831 Don't attempt to change user or group or set capabilities
1832 if dnsmasq is run as a non-root user. Without this, the
1833 change from soft to hard errors when these fail causes
1834 problems for non-root daemons listening on high
1835 ports. Thanks to Patrick McLean for spotting this.
1837 Updated French translation. Thanks to Gildas Le Nadan.
1841 The changelog for version 2.42 and earlier is
1842 available in CHANGELOG.archive.
projects / people / ms / dnsmasq.git / blob